CAR WONT START

while driving the car it stoped moving as if the trasmission had went out and the car was still runing
i turned it off and it would not start back up I heard the spining sound like the starter was stuck in the out position
when I got it home I checked the starter to find that the nose of the starter had been broken off I went to check the teeth of the flywheel it was fine but I was able to turn the flywheel free and easily with my hand and none of the pulleys moved I placed a new starter in it and the pulleys is slightly moving but not enough to start the car can you please tell me what the problem could be